Persistent Identifier
|
hdl:2014/51165 |
Publication Date
|
2020-01-06 |
Title
| Navigation Design and Operations of Maven Aerobraking |
Author
| Demcak, Stuart W (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Young, Brian (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Graat, Eric (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Beswick, Robert (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Criddle, Kevin (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Ionasescu, Rodica (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Hughes, Randall Scott (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Lee, Julim (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Haggard, Mike (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Sealy, Nicholas (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Pisano, William (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Carpenter, Russell (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Burns, Richard (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020)
Jakosky, Bruce (Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020) |
Point of Contact
|
Use email button above to contact.
Demcak, Stuart W |
Description
| This paper describes the operational design and execution of the MAVEN aerobraking phase at Mars from a Navigation Team perspective. MAVEN was designed to perform atmospheric science in a ~150x6200 km altitude elliptical orbit. After the primary science mission, it was decided that MAVEN should circularize its orbit, as much as feasible from a spacecraft and mission standpoint, to better support relay operations with the landers. As a result, MAVEN performed aerobraking in the first half of 2019 to reduce its orbit to ~150x4500 km altitude. Although MAVEN did not decrease its altitude as low as previous aerobraking missions, it had several unique challenges. Science observations continued to be taken during aerobraking, requiring dramatically better Navigation accuracies than typical for such phases. Furthermore, continuous DSN coverage with 2-way Doppler data was not available. So, with 40% less Doppler data, Navigation had to meet prediction accuracies which were an order of magnitude smaller than in previous aerobraking operations. Spacecraft accelerometer data was included in Navigation analyses in order to meet these requirements. |
Subject
| Other |